Its important to know this so that you can properly prepare for any rare cards that you get and that you want to keep safe
Revel in Riches is the most obvious and most powerful as an alternate win condition
Draining Shield X TRAP If an opponent's monster declares an attack: Target the attacking monster
PS Platinum Secret Rare QCSE Quarter Century Secret Rare Sinister Shadow Games X TRAP Send 1 "Shaddoll" card from your Deck to the GY, then you can change any number of face-down Defense Position "Shaddoll" monsters you control to face-up Defense Position
Choosing the right trading card protector sleeves is essential for maintaining the value and condition of your cards
The card basically reads as "if your opponent takes game actions, you draw a card, oh hey, and also, no looping extra turns over there, guy." That's under normal game conditions, mind you